Deploy web apps with Docker
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Deploy web apps with Docker

Rescue yourself from the complexity of DevOps

About the Book

Docker allows you to package an application with all of its dependencies into a standardized unit for software development. This is an excellent way to ensure what works on your machine will work in production too. This book will explain how to get situated with Docker on your workstation, how to create a Dockerized version of your web application in development mode and get it working in production.

After you finish the book you will have a solution that lets you git push code to a staging or production server and have everything like service restarts and more happen automatically. You can sit back and relax while the code we've written does all the work.

We will even go over signing up for a cloud hosting provider, registering a domain name and hooking up a free SSL certificate so you can safely serve the contents of your website to your visitors.

There are a number of code examples included and the final result is a fully working solution that you can apply to your next project. The emphasis is on Docker, not a specific web programming language or framework. You will easily be able to apply everything here to your favorite language or framework.

Save yourself from months of painful research and testing. You're only a few short hours away from having a robust and dependable deployment solution at your disposal.

About the Author

Nick Janetakis
Nick Janetakis

Nick Janetakis is a full stack developer who also happens to be a technology enthusiast. He contributes to a number of open source projects and helps companies bring their ideas to life by developing and deploying solutions for them.

Reader Testimonials

Alec Reiter
Alec Reiter

I came in with no Docker knowledge and in less than 55 pages I walked away with something much more than a hello world example. I'm going to recommend this book to my friends, it's extremely well put together.

Josh Flinner
Josh Flinner

This book was easy to follow and understand. I had minimal knowledge with Docker, now I feel more confident in using Docker for my web apps. I will recommend this to those wanting to use Docker.

Table of Contents

  • Getting to know Docker and CoreOS
    • What is Docker and why should you use it?
    • What is CoreOS and why should you use it?
  • What are we going to build?
    • Overview of the technology stack
    • Example web application architecture
    • What if you want to dial it down?
  • Get your workstation running Docker
    • Are you using Windows, Mac or Linux?
    • Windows users
    • Mac users
    • Linux users
    • Install additional tools
    • Sanity check
  • Create the demo application
    • Set up the project directory structure
    • Set up the Flask application
    • Dockerize the Flask application
    • Introduce Redis to our Flask application
    • Moving beyond a trivial application
    • Let’s make a git repository
    • Sanity check
  • Create a staging environment
    • Going from development to production is risky
    • What should we use to host our staging environment?
    • What is Vagrant?
    • Install Vagrant
    • The Vagrantfile
    • Launch, test and stop the Vagrant driven VM
    • Update our ignore files
    • Sanity check
  • Crash course with systemd
    • What is systemd?
    • Create our first unit file
    • Get used to systemd’s command line tools
    • A second unit file for our Flask application
    • Sanity check
  • Harden the Flask app with nginx
    • What is nginx and why should you use it?
    • nginx is just another unit file
    • Create a custom nginx Docker image
    • Sanity check
  • Test drive our staging server
    • Get the code onto the server
    • Create the git hooks
    • Going back to the Vagrantfile
    • Launch a new Vagrant box
    • Sanity check
  • Create a production server
    • How will we host the application?
    • Sign up with Digital Ocean
    • Prepare your droplet
    • Secure your droplet
    • Sanity check
  • Register a domain name
    • Accessing your server by IP address is lame
    • Configure your domain
    • Configure your e-mail
  • Grab a legit SSL certificate
    • A rant on SSL certificate vendors
    • Signing up with StartSSL
    • Backup your server certificates in a safe place
    • Copy your new certificates to the production server
    • Verify that it works and is graded A+
  • Wrapping things up
    • Where to go next for Docker knowledge?
    • Want to learn more about Flask?

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